May 2012
Intermediate to advanced
679 pages
16h 56m
English
Content preview from Object Oriented Programming with C++, Second EditionBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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10.7 CONSTRUCTORS FOR VIRTUAL BASE CLASSES
C++ Manual specifies the following rules.
Constructors for virtual base classes are invoked before any non-virtual base classes.
- If the hierarchy contains multiple virtual base classes, the virtual base class constructors are invoked in the order in which they were declared.
- Any non-virtual bases are then constructed before the derived class constructor is called.
- If a derived class has one virtual base class and other non-virtual base class, then the constructor of the virtual base class will be constructed first even though it appears at second position in the declaration. Then the non-virtual base class constructor is executed. (Normally, whichever is in the first position, is executed first.)
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